While not motorsports, Dave Koch Sports, alias Action! PC sports games are quite fun and relaxing games If you like sports games In this format. They are a mix of sim/management games with more focus on the sim side. They are very customizable so basically you can play them as you want. Excellent If you want to sim say a 1972 Hockey season like I am doing now. They don´t Include RL logos or pictures do to licenses, but most of us downloaded them from other dedicated sites. Videos on YT show you how-to. Personally I like this better then the Out of The Park series because there not that management/finances heavy as OOTP are.
Another neat game, and the seasons are free to download along with some other mods. Don´t let the animations fool you, It´s still a great little game IMO. Available on steam.
